Chestnuts are a beloved seasonal delicacy, often associated with cozy winter evenings, holiday gatherings, and the comforting aroma of roasting nuts filling the kitchen. Unlike other nuts, chestnuts are unique because of their starchy, slightly sweet flesh that softens when cooked, making them perfect for snacking or using in recipes like stuffing, soups, and desserts. Traditionally roasted over an open fire or baked in an oven, chestnuts can now be cooked conveniently in an air fryer, which delivers a crispy exterior and tender interior in a fraction of the time. The air fryer’s rapid circulation of hot air allows chestnuts to cook evenly while retaining their rich, natural flavor. In this guide, we’ll explore everything you need to know about air frying chestnuts, from temperature and timing to troubleshooting common mistakes.
Choosing the right temperature is critical to achieving perfectly roasted chestnuts. Air fryers cook food faster than traditional ovens, and chestnuts require gentle heat to ensure the shell splits open without burning the nut inside. The optimal temperature for air frying chestnuts is 375°F (190°C).
At this temperature, the chestnut shells dry out just enough to allow for easy peeling, while the inner flesh becomes soft and creamy. Temperatures higher than 400°F (204°C) risk scorching the shells before the chestnut cooks thoroughly, resulting in uneven texture. Conversely, temperatures below 350°F (177°C) may lengthen the cooking time unnecessarily, and the chestnuts might not develop the characteristic roasted aroma.

Cooking time is as important as temperature. In general, chestnuts require 12-18 minutes at 375°F (190°C), depending on their size and freshness. Medium-sized chestnuts usually fall within the 15-minute range, while larger ones may need a few extra minutes.
For even results, it’s best to shake the basket halfway through cooking to ensure uniform heat distribution. Keep in mind that chestnuts vary in moisture content, so small adjustments may be needed to achieve the perfect roast.
Knowing when chestnuts are properly cooked requires careful observation. Indicators include:
A little patience goes a long way here-undercooked chestnuts are starchy and hard, while overcooked ones become dry and crumbly.
To roast chestnuts in an air fryer, you only need a handful of simple ingredients:
Optional enhancements include butter, honey, or a sprinkle of cinnamon if you want a slightly sweeter and more indulgent treat.
Common mistakes include:
No, you should not peel chestnuts before air frying. The outer shell and inner skin help protect the nut during cooking. Peeling is easier after roasting, as the shell and skin loosen due to the heat.
First, rinse the chestnuts and pat them dry. Then, score each chestnut with a sharp knife by making an X on the flat side. This prevents them from bursting during cooking and makes peeling easier after roasting.
Set the air fryer to 375°F (190°C). This temperature is high enough to cook the chestnuts thoroughly while allowing them to roast evenly without burning.
Chestnuts typically take 15-20 minutes in the air fryer. Shake or stir them halfway through cooking to ensure even roasting. Cooking time may vary slightly depending on the size and freshness of the chestnuts.
Chestnuts are done when the shells are darkened, the scored cuts have opened, and the nut inside feels tender when pierced with a knife. The nut should have a slightly sweet aroma and be easy to peel.
Yes, cooked chestnuts can be stored. Keep them in an airtight container in the refrigerator for up to 5 days. For longer storage, freeze them for up to 3 months, making sure to peel and store them in portions suitable for future use.
Peel chestnuts while they are still warm, as the skin hardens when cooled. Start by removing the outer shell, then carefully peel off the inner brown skin. Using a small knife can help remove stubborn skin patches.